Doorstop



Nov. 10 l925- DOORSTOP l Filed Aug. 4. 1924 n w /f .mi um Patented Nov.10, 1925.

A''ET FFME.

FREDERICK YOST, OF GOLDEN, COLORADO.

DOORSTOP.

Application mea August a., 1924. serial no. 729,942.

To all wtomct may concern:

Be it known that I, FREDERICK Yos'r, a citizen `of the United States,residing at Golden, in the county of Jefferson and State of Colorado,have invented certain new and useful Improvements in Doorstops, of which`the following is a specification.

My invention relates to door-stops and its primary object is to providean appliance of highly efficient though very simple construction whichby frictional resistance will automatically hold a j door or window inany adjusted position. V

lith this and other objects in view, my

f invention consists in the construction and combination of partsillustrated in their preferred form and relative arrangement in theaccompanying drawings in the several views of which like parts aresimilarly designated and in which Figure 1 represents a partiallysectional perspective view of my improved door-stop in its operativeposition relative to a door in a partially open position;

Figure 2, a face vienT of a corner portion of the door frame and thedoor in the closed position, drawn to a reduced scale, and showing theapplication of the stop;

Figure 3, a fragmentary topeview of the appliance on the door and thefra-me thereof, as shown in Figure 1;

Figure 4, a section along the line 4*4, Figure 3; and

Figure 5, a section taken on the line 5-5, Figure 3.

Referring more specifically to the drawings, 5 designates a door hingedas at 6 in a frame 7 to swing about a vertical pivot.

My improved door stop comprises a casing i?, having laterally projectingfianges 9 for its connection to the door frame and provided with a slot10 for the projection of a fiat arm 12 which is pivotally mounted on thebottom 13 of the casing by means of a headed bolt 14.

The casing may be open at its top as shown in the drawings and it isfastened to the door frame immediately above the door adjacent to thehinged edge thereof by means of screws 15 inserted through apertures inits flat back 16 and in the therewith alined flanges 9, it beingdesirable that the pivotal axis of the arm 12 be in a vertical plane atright angles to the door frame with the hinges of the door.

The arm 12 which at its outer end has a end-portion of the headed bolt14.

rlihe spring tensioned by the nut, causes the hub-portion of the arm tofrictionally engage between the bottom of the casing and the theretosuperposed washer and it is this frictional engagement which resists themovement of the arm and thereby holds the door in its adjustedpositions.

r1`he tension of the spring is readily varied by rotation of the nut onthe bolt andthe stop may thus be adjusted to doors of different weightsand sizes.

rihe slot-andstud connection of the arm with the bracket 19 compensatesfor the difference in arcs through which the two parts move when thedoor is opened and closed and it will be evident that the adjustment ofthe spring permits of varying the frictional resistance to the movementof the door to any desired degree.

Having thus described my invention, it

is to be understood that variations in details s of construction and inthe proportions and relative arrangement of the component parts of thestop may be resorted to within the scope of my invention as defined inthe hereunto appended claims.

What I claim and desire to secure by Letters Patent is:

1, A door-stop comprising a support fixed upon the door frame, an armhaving a hub-- portion pivoted on the support, a spring holding thehub-portion in sliding contact with the support, and means to pivotallyconnect the outer end of t-he arm with a door hinged in the frame.

2. A door-stop comprising a support fixed upon the door frame, an armhaving a hubportion pivoted on the support, a spring holding` thehub-portion in sliding` contact with the support, a nut for adjustmentof the spring, and means to pivotally connect the outer end of the armwith a door` hinged in the frame.

3. A door-stop comprising a support fixed upon the door frame, an armhaving a hubportion pivoted on the support, a conical spiral springholding the hub-portion in sliding Contact with the support, e nutengaging the spring, and means to pivotally connect the outer end of thearm with u door hinged in the frame.

4. A door-stop comprising asupport fixed upon the door-frame, an armhaving a hubportion pivoted on the Support, a Washer engaging thehub-portion, a spring holding the hub-portion in sliding Contact withthe support and the Washer, and means to pivotally connect the outer endof the arm with a door hinged in the frame.

5. A door-stopv comprising a slotted easing, adapted for connection withu door frame, an arm projecting through the slot of the casing andhaving zt hubeportion engaging the bottom of the same, a bolt upon whichsaiti hub-portion is pivoted, a Spring to frictionally hold thehub-portion of the arm in Contact With the bottom of the casing, a nuton the bolt engaging the spring7 and means to pivotally Connect theouter end of the arm with it door hung in the frame.

6. A door-stop comprising a slotted easing adapted for connection witha. door iframe, an arm projecting through the slot of the casing andhaving a hub-portion engziginfy the bottom of the sume, :t bolt uponwhich said hub-portion is pivoted, a Washer engaging the upper surfaceof the hub-portion, a spring engaging the Washer, a nut on the boit,engaging` the spring. and means to pivotzilly connect the outer end ofthe arm with :t door hung in the frame.

In testimony whereof I have aiiixed my Signature.

FREDERICK YOST.

